I just looked at the 6400 files from the D7200 and the D500 just to give it a look. I ran them both through Define 2. The D7200 file cleaned up nicely, not perfect, but as I expected. I saw no change in the D500 file. If anyone else is playing with these and could give that a look I would appreciate it. Could have been a short between the keyboard and the chair, but I tried it twice.